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Exercise Tiger: The Disastrous D-Day Rehearsal That Cost 800 Lives

In
the early morning hours of June 6, 1944, thousands of Allied soldiers
stormed into the beaches of northern France in what became the largest
seaborne invasion in history. In the space of a single day, Operation
Overlord put over 180,000 troops ashore in Normandy, creating a
beachhead that eventually allowed more than 3 million Allied soldiers
into German occupied Western Europe, setting the stage for the final
phase of the war in Europe.

In the months leading up to D-Day, the
Allied powers organized a series of training exercises involving full
dress rehearsal and live ammunition in order to give the soldiers a
small taste of what they would experience during the actual landings.
One such rehearsal took place in a small sleepy Devon village named
Slapton.American troops landing on Slapton Sands in England during rehearsals for the invasion of Normandy.
Slapton
was located on the southwest coast of England where it meets the
English Channel. It was chosen because Slapton’s beach looked very
similar to the one in Cotentin Peninsula, the westernmost of the five
beaches along Normandy where the real assault would take place. This
particular beach was code named Utah.
In late 1943, some 3,000
residents of Slapton were evacuated to make way for “Exercise Tiger”,
the code name for the D-Day landing rehearsal scheduled for the
following spring. The American troops who were to rehearse there were
the so-called “Force U”, tasked with landing on Utah Beach.
General
Dwight D. Eisenhower, the Supreme Allied Commander, wanted Exercise
Tiger to be as realistic as possible. He insisted that live ammunition
be used instead of blanks so that his soldiers could feel, see and even
smell what a real battlefield looked like. In order to simulate the
Channel crossing, the assault troops were taken on a long winding route
through Lyme Bay. General Eisenhower wanted his men to experience the
rough sea, he wanted his men to get accustomed to seasickness. Before
the landing, there was to be naval artillery bombardment of the beach,
and during the landing itself troops placed on land playing the role of
German defenders were to fire live rounds over the heads of the incoming
men to simulate real battlefield conditions.
The
first phase of the exercise from 22 to 25 April, 1944, went without
incident. Trouble began on the morning of 27 April when some of the
ships participating in the exercise fell badly behind schedule, forcing
the American Rear Admiral Don Pardee Moon to delay the entire exercise
by one hour. The landing was now to take place at 8:30 am instead of
7:30 am. Unfortunately, this crucial information was not adequately
relayed to all ships.
Some of the landing crafts, unaware of the
rescheduling, landed on the beach just when the rescheduled naval
bombardment began raining shells down on the unsuspected men. Then for
some perplexing reasons, the mock German troops on land began mowing
down their comrades on the beach with gunfire.
Royal Engineer Jim
Cory watched in horror from an observation post as soldiers streaming
from landing craft were 'mown down like ninepins'. Cory counted 150
bodies before he fled.
“What he saw that day tormented him until
his death last year,” wrote the Guardian. “His widow, Mary, who
recounted his story last week, said: 'He always hoped that one day he
would get an official answer.'”
The men’s uncharacteristic behavior was never fully explained.Rehearsal landing in Slapston Sands
As
many as 450 men may have been killed on the beach that day. Yet there
is not a single official mention of the incident in Army records. The
entire exercise was hushed up for fear of embarrassment to the Allies,
and those who survived were sworn to secrecy by their superiors. All the
dead were hastily buried in a mass grave nearby, and a couple of months
later the bodies were secretly transported by trains to an unknown
location. It’s only about forty years ago that details of the massacre
started to surface as curious locals began to question the skulls and
bones, and other military artifacts that periodically washed up ashore
on Slapton and on nearby beaches over the decades.
The incident of
the ‘friendly fire’ on Slapton beach wasn’t the only fiasco during
Exercise Tiger. The very next day, a convoy of eight landing crafts
unexpectedly bumped into a group of nine German E-boats patrolling Lyme
Bay. Of the two ships assigned to protect the convoy, only one was
present; the other was at Plymouth undergoing repairs. The convoy was
like sitting ducks. Torpedoes tore into the vessels and blew them apart.
300 more American troops were dead, taking the toll to over 750.Landing on Utah beach in June 1944.
There’s
a surprising amount of confusion about the final death toll. Estimates
range from 749 to 946—a figure that is all the more staggering when you
realize that more people were killed in the rehearsal for the landing at
Utah Beach than the actual landing itself—197 were killed in action at
the Utah Beach landing on June 6, 1944.
The lessons learned from
that grim episode eventually helped lower casualties during the actual
Normandy landings. Many men during the T-4 convoy attacks drowned
because they were not properly trained to put on their life vests.
Better life jacket training was put into place, and troops were trained
how to pick up survivors floating in the water. The most important
change was that they fixed their broken communication system by
standardizing the radio frequencies so that miscommunication could never
happen on the big day.A Memorial plaque at Utah Beach. Photo credit: Jebulon/Flickr
The
Allied organized more landing exercise on English beaches over six
phases after the Exercise Tiger fiasco. This one was code named Exercise
Fabius. The 1st and 29th American Infantry Division returned to Slapton
Sands to rehearse the landing on Omaha Beach. As if on a curse, the
Omaha beach landing turned out to be the most difficult and bloodiest of
all Normandy landings with American troops suffering between 2,000 and
4,700 casualties.
After the war, the US army presented a memorial
which now stands on Slapton Sands thanking the villagers who left their
homes to “provide a battle practice area for the successful assault in
Normandy”. No mention of the lost lives was made on the memorial plaque.
In
1984, locals salvaged a Sherman Tank from the sea bed and installed it
at the southern end of the beach at Slapton as a memorial commemorating
those who died during Exercise Tiger.
Photo credit: Barry Lewis/Flickr
The memorial presented by the US Army to Slapton. Photo credit: Tom Bastin/Flickr
Slapton’s beach today. Photo credit: Dave Johnson/Flickr